[Qgis-developer] Night Mapping theme, changeset da3f7be

[Nathan Woodrow]

Hey Steven,

Thanks.  I will take a look at any issues before the release.  The best way
to get these addressed is to open tickets on hub.qgis.org and assign them
to me.

Regards,

On Mon, Aug 31, 2015 at 1:13 AM, S Mizuno <spookster at netzero.net> wrote:

> Hi Nathan,
>
> I just noticed the recent addition of UI themes / Night Mapping and how Qt
> stylesheets are used to implement it. This is a great idea, but there are a
> few things to be careful of.
>
> In particular, changing the theme to Night Mapping is OK, but changing
> back to 'default' causes QGis to crash, due to the stylesheet file
> referenced not existing.
>
> And the Style setting in options shows blank on first use of the new
> theme. Clicking OK on the Options (and possibly other actions) causes the
> WindowsVista (on my computer) style to be use on subsequent QGIS start.
>
> I had recently begun to try using stylesheets to set things, such as icon
> size, and have found some issues:
>
> + setting an invalid stylesheet may cause QGIS crash (when setting style
> after the stylesheet -- not a common practice, or even setting a defective
> stylesheet), so don't set something like 'file:///style.qss' if the file
> doesn't exist.
>
> + setting a stylesheet on application object hinders recovery of the style
> name as used in the Options dialog; probably should track the style as a
> text value and not recover from the style object.
>
> + using a stylesheet on the application object to set icon size, for
> example, seems a better idea to me than to program a specific set of
> controls to get the size as is done now.
>
> + in spite of Qt docs noting that setting style after QApplication object
> creation isn't recommended, I have done so successfully, except when there
> is a defective stylesheet present.
>
> + presently, the font and certain other settings applied by stylesheet are
> on the main window so only child windows get the styling. The stylesheet
> really should be set on the application so all windows of the app get the
> styling.
>
> + any stylesheet settings applied directly need to be integrated with any
> additional settings from a file. I not sure how to do both direct settings
> and include a file, too, at the present time
> .
>
> I am not well Internet connected right now, so it may be a while before I
> respond to any replies.
>
> Steven Mizuno
>
>
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